#include <cstdio>

int is_year (int year ) {
    return (year % 4 == 0 && year % 100 != 0) || year % 400 == 0 ? 1 : 0;
}
void solve(){
    int year=1777,month=4,day=30;
    for (int i=1;i <8113;++i ){
        day++;
        if(day==32){
            if (month==1||month==3||month==5||month==7||month==8||month==10){
                day=1;
                month++;

            }
            if(month==12){
                day=1;
                month=1;
                year++;
            }
        }
        if(day==31){
            if(month==4||month==6||month==9||month==11){
                day=1;
                month++;
            }
        }
        if((day==30&& is_year(year)==1)||(day==29&& is_year(year)==0)){
        	if(month==2){
        		day=1;
        		month++;
			}
		}
        
    }
    printf("%d-%02d-%02d",year,month,day);
}
int main(){
    solve();
    return 0;
}
